There is no MSME registration fee, which was has been clarified by the Ministry of MSME. The Udyog Aadhar Memorandum is the official website to sign up your business. The registration process is simple, but if assistance is necessary they can get help from their respective District Industries Centre. The registration is not mandatory, but by registering you will be able to get a lot of benefits. 

By registering under this scheme you will be able to avail loans up to Rs. 50 lakhs, without pledging collateral and to ensure that your business doesn’t get competition from other multinational companies, this scheme will provide exclusive rights for your product. It also helps MSMEs upgrade their equipment through the latest technology by helping them get low interest loans from banks.